//数字滚动
(function($, window, document) {
	// "use strict";
	var defaults = {
		deVal: 0, //传入值
		className: 'dataNums', //样式名称
		digit: 5 //默认显示几位数字
	};

	function rollNum(obj, options) {
		var len = options.deVal.toString().length
		options.digit = len
		this.obj = obj;
		this.options = $.extend(defaults, options);
		this.init = function() {
			this.initHtml(obj, defaults);
		}
	}
	rollNum.prototype = {
		initHtml: function(obj, options) {
			var strHtml = '<ul class="' + options.className + ' inrow">';
			var valLen = options.digit || (options.deVal + '').length;
			for(var i = 0; i < valLen; i++) {
				strHtml += '<li class="dataOne "><div class="dataBoc"><div class="tt" t="38"><span class="num0">0</span> <span class="num1">1</span> <span class="num2">2</span> <span class="num3">3</span> <span class="num4">4</span><span class="num5">5</span> <span class="num6">6</span> <span class="num7">7</span> <span class="num8">8</span> <span class="num9">9</span><span class="num0">0</span> <span class="num1">1</span> <span class="num2">2</span> <span class="num3">3</span> <span class="num4">4</span><span class="num5">5</span> <span class="num6">6</span> <span class="num7">7</span> <span class="num8">8</span> <span class="num9">9</span></div></div></li>';
			}
			strHtml += '</ul>';
			obj.html(strHtml);
			this.scroNum(obj, options);
		},
		scroNum: function(obj, options) {
			var number = options.deVal;
			var $num_item = $(obj).find('.' + options.className).find('.tt');
			var h = $(obj).find('.dataBoc').height();

			$num_item.css('transition', 'all 2s ease-in-out');
			var numberStr = number.toString();
			if(numberStr.length <= $num_item.length - 1) {
				var tempStr = '';
				for(var a = 0; a < $num_item.length - numberStr.length; a++) {
					tempStr += '0';
				}
				numberStr = tempStr + numberStr;
			}

			var numberArr = numberStr.split('');
			$num_item.each(function(i, item) {
				setTimeout(function() {
					$num_item.eq(i).css('top', -parseInt(numberArr[i]) * h - h * 10 + 'px');
				}, i * 100)
			});
		}
	}
	$.fn.rollNum = function(options) {
		var $that = this;
		var rollNumObj = new rollNum($that, options);
		rollNumObj.init();
	};
})(jQuery, window, document);